product-discovery

product-discovery is a skill for Claude Code from theagenticguy/erpaval. It costs 242 tokens per session (2,716 once invoked), scanned A, original, MIT.

A file-first product-discovery workflow that turns briefs, notes, tickets, or topics into a product requirements document (PRD) or another structured specification.

In plain words
What is it for?
Use it to explore a problem with methods such as user stories, Jobs to Be Done, Gherkin scenarios, or the Double Diamond, then combine the results into a specification.
Why use it?
It helps turn unclear product ideas into an organized description of user needs, requirements, and possible solutions.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: mentions subagents.

Part of the erpaval plugin — 11 skills, 1 agent, 3 hooks, 5 MCP servers shipped together

Good fit Use it to explore a problem with methods such as user stories, Jobs to Be Done, Gherkin scenarios, or the Double Diamond, then combine the results into a specification.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/theagenticguy/erpaval/product-discovery
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add theagenticguy/erpaval --skill product-discovery
Clone the repo
git clone --depth 1 https://github.com/theagenticguy/erpaval

Made for: Claude Code.

Or install erpaval, the plugin that ships this one along with the rest of its 11 skills, 1 agent, 3 hooks, 5 MCP servers.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for product-discovery

README.md
[![agentmods](https://agentmods.dev/badge/skills/theagenticguy/erpaval/product-discovery.svg)](https://agentmods.dev/skills/theagenticguy/erpaval/product-discovery)
Your own site
<a href="https://agentmods.dev/skills/theagenticguy/erpaval/product-discovery"><img src="https://agentmods.dev/badge/skills/theagenticguy/erpaval/product-discovery.svg" alt="Measured on agentmods" height="20"></a>
Per session 242 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,716 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00242 $0.02716
Opus 5 $0.00121 $0.01358
Sonnet 5 $0.00048 $0.00543
Haiku 4.5 $0.00024 $0.00272

Measured 8d ago against content hash 68b7f3e1cd46, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

product-discovery scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

kiro/skills/product-discovery/SKILL.md · 213 lines

How it starts

The opening of the file, as written. The whole thing — 213 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Slash-command argument convention. Kiro auto-exposes every skill as a slash command. When invoked as /product-discovery <source>, the body's $ARGUMENTS substitution resolves to the source path or topic. Typical sources are a path to raw content like a brief, notes, or tickets, or a one-line topic. The argument is optional. With no arguments the orchestrator prompts the user.

Contents

Reference When to load
references/orchestrator.md Running the pipeline. Five routes, parallel Phase 2, critic review, deliver.
references/write-protocol.md Canonical write-protocol block. Copied into every subagent prompt.
references/frameworks/INDEX.md Routing guide. Discovery and spec decision tables. Composition rules.
references/frameworks/*.md Per-framework files. One per framework.
references/methodology/discovery-rounds.md Six-phase discovery methodology.
references/inference-heuristics.md Signal-to-inference tables for the PRD-route Intent Profile.
references/quality/prd.md Per-section PRD quality bar. Cross-section consistency checks.
references/roles/product-analyst.md PRD route. Vision, personas, user stories, IA, milestones.
references/roles/system-architect.md PRD route. NFRs, data models, API contracts, edge cases.
references/roles/research-scout.md PRD route. Market context and open questions.
references/roles/discovery-lead.md Discovery-round route. Problem framing and Double Diamond cadence.
references/roles/hmw-framer.md HMW-only route. Also the hard-dep entry point for erpaval CL-RIGOR fuzzy.
references/roles/jtbd-interviewer.md JTBD-only route. Job stories from PM-provided source material.
references/roles/ears-specifier.md EARS-only route. Also the hard-dep entry point for erpaval CL-RIGOR contract-unclear.
references/roles/prd-synthesizer.md PRD route Phase 3. Composes the final PRD from three parallel work logs.
references/roles/discovery-critic.md Phase 3.5 critic. Rubric-graded review of any synthesized artifact.
assets/prd-template.md 15-section PRD skeleton with [FILL] markers.
assets/worklog-skeleton.md Per-role work-log skeleton with embedded write-protocol.
assets/discovery-memo.md Discovery-round output shape.
assets/double-diamond-workbook.md Double Diamond four-stage workbook.
assets/hmw-skeleton.md HMW brainstorms file. Lives at brainstorms/NNN-<slug>-requirements.md.
assets/jtbd-skeleton.md JTBD job-stories file.
assets/ears-spec-skeleton.md EARS spec file. Lives at specs/NNN-<slug>/spec.md.

Read the full file on GitHub · 213 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 213 lines · 242 tokens per session scan A 68b7f3e1cd46

Subscribe to this mod's changes

product-discovery is a skill published in the GitHub repository theagenticguy/erpaval (28 stars, last pushed 3mo ago), licensed MIT. It adds 242 tokens to every session and 2,716 once invoked, about $0.0012 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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